<docs>
---
order: 9
title:
  zh-CN: useForm 嵌套表单
  en-US: useForm for nested Form
---

## zh-CN

通过 [`Form.useForm`](#useform)  使用点字符串拼接进行嵌套数据校验。

## en-US

[`Form.useForm`](#useform) use dot string splicing for nested data verification.
</docs>

<template>
  <a-form :label-col="labelCol" :wrapper-col="wrapperCol">
    <a-form-item label="Activity name" v-bind="validateInfos.name">
      <a-input v-model:value="modelRef.name" />
    </a-form-item>
    <a-form-item label="Sub name" v-bind="validateInfos['sub.name']">
      <a-input v-model:value="modelRef.sub.name" />
    </a-form-item>
    <a-form-item :wrapper-col="{ span: 14, offset: 4 }">
      <a-button type="primary" @click.prevent="onSubmit">Create</a-button>
      <a-button style="margin-left: 10px" @click="reset">Reset</a-button>
    </a-form-item>
  </a-form>
</template>
<script lang="ts" setup>
import { reactive, toRaw } from 'vue';
import { Form } from 'ant-design-vue';

const useForm = Form.useForm;

const labelCol = { span: 4 };
const wrapperCol = { span: 14 };

const modelRef = reactive({
  name: '',
  sub: {
    name: '',
  },
});
const { resetFields, validate, validateInfos } = useForm(
  modelRef,
  reactive({
    name: [
      {
        required: true,
        message: 'Please input name',
      },
    ],
    'sub.name': [
      {
        required: true,
        message: 'Please input sub name',
      },
    ],
  }),
);
const onSubmit = () => {
  validate()
    .then(res => {
      console.log(res, toRaw(modelRef));
    })
    .catch(err => {
      console.log('error', err);
    });
};
const reset = () => {
  resetFields();
};
</script>
